Re: [binarycloud-dev] entity history

[<bin...@li...>]

hey andi,

glad you think so.

I've added that field and its description to the entity example in
docs/specs/xml/

:)

-a


> Hi Alex,
> 
> this is a *very* useful feauture we should implement.
> 
> Andi
> 
> 
> 
> 
>> I was looking at a sourceforge support request (mine, actually, the one
>> about reply-to on this list)
>> 
>> and a relatively simple means of getting 'entity change histories' to work
>> within the system occurred to me:
>> 
>> a top-level tag in the entity definition:
>> 
>>    <entity:history>true</entity:history>
>> 
>> what would that do?
>> 
>>    -When you generate metabase xml schemas, _two_ schemas would
>> be created,
>> one with the name of the entity: "furbees" and another: "furbees_history"
>>    -furbees_history would contain the same fields as furbees, with the
>> addition of two important fields:
>>        -history_id
>>        -history_timestamp
>> 
>> With those two tables, it would be _relatively_ easy to implement a
>> GetByHistory() method in EntityManager, which would trickle down to the
>> correct Query to furbees_history through QueryManager..
>> 
>> that's easy to deal with for applications like bugtrackers, support
>> requests, etc...
>> 
>> so you could ask for the 'current copy' of the entity, or one of the copies
>> by id or timestamp, or all but the current, or all.. etc.
>> 
>> something where you have a set of fields but need to maintain the same key
>> id.
> 
> 
> _______________________________________________
> binarycloud-dev mailing list
> bin...@li...
> https://lists.sourceforge.net/lists/listinfo/binarycloud-dev
> http://www.binarycloud.com
> http://www.sf.net/projects/binarycloud/
>